Dishwasher



Y sep.16,1924. 1,508,495

E. W. BACHARACH DISHWASHER Filed Jan. 7, 1922 s sheets-sheet 1 im Eff Sept. 16 1924.

f E. w. BACHARACH DISHWASHER Filed Jan. '7, 1922 3 Sheets-Sheet 2 i TTONE Y' Sept. 16 1924.

E. w. BACHARACH DISHWASHER .rvs sheets-sheet 5 Filed Jan. '7, 1922 t' /NLENTo/a A TTORNEY Patented Sept. 16, 1924,.,v

l itdt ERIC W. BCHARACH, OF KANSAS CITY, MISSOURI.

DISHWASHER.

Application filed January 7, 1922. Serial No. 527,609.

skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

This invention relates to dish washing machines and the primary object of the invention is to provide an efficient, inexpensive and conveniently operated dish washing machine in which a spray of suds or saponified water may be directed upon and over the dishes to be freed of food fragments and other adhering matter.

'lhe invention also contemplates the provision of means whereby the same mechanism that is utilized for cleaningl the dishes may serve as a rinsing means and the invention also contemplates the provision of means whereby the soap content of the wash water can be increased or diminished by regulating an automatic feed associated With the water, the soap feeding mechanism being adapted to be cut oft' so that only clear water. will be directed over the dishes to rinse them.

I have further provided means whereby a fountain brush connected with the washer may receive its sapo-nified and rinse water supply from the same source that supplies the wash water tothe washing machine, the brush being so co-related with the washing machine apparatus that it may be used to .scour and cleanse all kinds of cooking utensils, such as pots, pans, etc., with a minimum amount of work on the part of the operator` it also being unnecessary for the operator to get his hands in the wash water.

A silver cleaning device is also associated with the dish washer in such a manner thatv the suds from the washing machine may pass into the silver cleaner to be available for cleaning the silverware. such as knives, forks, spoons. etc., before it finally passes o t'f as waste.

The novel details of construction in the embodiment of my invention 'selected for illustration will be specifically described hereinafter, reference being had to the accompanying dra-wings, in Which- Fig. 1 is a perspective view of a dish washing machine constructed in accordance with my invention, the front door or cover being raised to show the interior` construction of the device.

Fig. 2 is a vertical, longitudinal, sectional view through the dish washer.

Fig. 3 is a cross sectional plan view through a. part of the dish washer to show the arrangement of the carriage for moving the spray apparatus back and forth.

Fig. 4 is a detail cross sectional view through the silverware washer.

Fig. 5 is a disassociated fragmentary view of the carriage arm, the link for connecting it to the sprayer frame and fastening devices for connecting the link to the arm.

Fig. 6 is a cross sectional view through one end of the washing machine, the spraying mechanism being shown in elevation.

Fig. 7 is a view partly in elevation and partly in section` illustrating the water supply and the means for saponifying it.

Fig. 8 is a cross sectional view through any one of the top or side spray tubes, and

Fig. 9 is a fragmentary detail view of the bottom spray tubes- The device is adapted to be supplied with hot water from any suitable source. For domestic purposes, small restaurants and the like, the ordinary hot water tap or spigot over the usual sink may be used for connecting the device to the service pipe. The device is especially adaptable to the use of hotels and other large institutions which require the cleansing of great quantities of dishes; as will be explained hereinafter, the dish washing capacity of this device is only limited by the rate of How of hot water that is obtainable.

The supply pipe connection for the washer may be tapped in in rear of the spigot or attached directly on the end of the spigot by means of a sli p-on connection, or may be connected in any suitable manner with any convenient source of hot water supply. The Pipe '2, which is Contested t0 the Servie@ pipe 3 is provided with a valve 4, which may be opened to admit water into the washing machine from the pipe 3 or it may be closed when the spigot 1 is to be opened to the exclusion ot the washing machine, as will be well understood by reference to Figs. 1 and 7.

The pipe 2 is connected to the washing machine supply pipe 5 through pipe 4,

be clearly apparent and pipe 5 into the washer.

through plpe 6, 1n which is located a valve 7, pipe 6 in which is located a valve 8, and through a flexible tube 25. ln spaced relation and connected to the pige 6. is a proportional flow passageway, y-passing 'the valve 7 (see Figs. 1 and 7). The 'vertical ipes 9 and 10 on opposite sides of valve 7 in pipe 6 are connected by the fittings 11 and 12, and the pipes 9 and 10 are connected one tov the other by the reducers 13 and 14 andthe T-shaped pipe 15, the upper vertical legs 16 of which extends into a soap receptacle 17, suitably supported and normally closed by a cover 18 of appropriate construction.

The bottom of the receptacle 17 is tapped into the reducer 14 by the pipe 19, as will by rete-rence to Figs. 1 and 7.

The pipe 10 is provided with a valve 20 and the fitting 11 taps into a valve casing 21, discharging into a flexible hose or pipe 22, on the end ot which is a fountain brush The pipe 9 is provided with a union 24. The connecting pipe 15 forms a restricted passageway for the water passing through it which causes a drop in pressure of the water. This will cause a portion of the water going through pipe 10 to pass upwards through pipe 19 into the soap box 17, then down through pipe 16 and back into the main flow of water which passes on through pipes 9, 6', 25 and 5' to the washing machine, the volume of water thus passing through the soap box will therefore always be proportionate to the main dow going into the washing machine. The size of the pipe 15 will be proportioned to the size of the pipe 10 so that the amount of saponified water entering the 'main iio'w will conform with a predetermined required volume. The pressure ot the water coming from the service pipe 3 'may be regulated either byvalve 4 ory by inserting an automatic pressure regulating valve in pipe 4. Therefore, when valves 4, 2O and 8 are open and valves 7 and 21 are closed, water will pass through pipe 10, will combine with a proportionate volume ot soap solution entering into pipe 15 and-the water mixed with soap solution will then pass through pipes 9 and 6', flexible tubular connection 25 When the valves 4, 7 and 8 are open and valves 20 and 21 are closed, fresh rinsing water will Lacasse by-pass the soap box and tlow into the pipes 6', 25 and 5 into the washing machine. When valves 4, 7 and 21 are open and valves 20 and 8 are closed, fresh rinsing water will :dow through the fountain brush.

The pipe 5 discharges into a hollow rectangular frame, which is supported within the washer casing or housing 26. The washer easing or housing is substantially rectangular, having end walls 27 and 28, a top 29, a bottom 30 and a rear wall 31, which extends toward but not quite to the bottom 30 of the casing. There is also a supplemental wall 32 which extends fromthe rear edge ot the bottom 30 in spaced relation but overlapping the wall 31, as clearly seen in Fig. 6, to provide an opening 33 for the introduction oi the flexible tubular conJ nection 25 into the casing. The wall 32 will be of sutlicient height to prevent the @E water within the casing escaping through the opening 33, the discharge for the casing being shown as a sluice-way or spout 34 at i the end 28 and discharging into a silvercleaning box 35, which is connected to the end 28 by the brackets 36 and 37. The box 35 has staggered vertical battles or panels 38 and 39 so that water can pass into the to of the box, pass downward under the battiti 38, then upward 'through channel 40 and be discharged over end bame 39, permitting a flow but at the same time maintaining a certain level within the box, as will be clearly understood by reference to Figs. 1 and 4.

Across the box or receptacle 35 is a Wiper or cleaner consisting of a shaft 41, around which is wound or fastened a covering 42 of fibrous material, such as cotton waste or the like so that when the silver, such as knives, forks and snoons, is withdrawn from the receptacle 35, it may be wiped on the cleaner or wiper 42, which will be free to rotate, so that a constantly new surface .will be presented to each article presented to it. The wiper 42 will be cleansed by the water lat falls upon it as it issues from the spout The water, after passing through receptacle 35, may discharge into-` the sink 43 lor to a suitable waste, not shown..l

ill@

being slightly inclined from the vertical,

se that the Sprays Of Wett? Will strik@ them at definite angles most eectivein cleansing them. The dish rack ins 47 are so arranged and proportione that the ordinary shallow plates 50 irrespective of their size or pattern will all stand at approximately the same angle with the vertical, the bottom edge of each platecatching under the cross wire 48. Soup plates and other deep plates 51 will be placed in the rack so that their bottom edges will be held between cross wires 48 and 48' which will incline them at approximately lthe same angle as the ordinary shallower plates 50'.

Below the rack supports 44 and 45 are additional rack supports 49 and 50, which carry a dish rack 51 of appropriate construction, on which additional dishes such as bowls, cups or glassware may be supported above the bottom of the rectangular casing. All of the bowls, dishes, glassware and the like to be washed may be introduced throughvthe opening closed byV the hinged door 52, which, when closed, will constitute the front cover wall for the casin ,said door being adapted to be latched y the latch 53 during the washing operation.

Secured withln the casing and spaced inwardly from the rear wall 31 is Aa bracket supporting wall 53', which carries the Z- bars 54 and 55, constituting a guideway for the rollers 56 and 57 of the spray frame carriage 58, and the brackets 59 and 60, which constitute a guideway for the rollers 61 and 62 of the bottom carriage 63 to which the frame is secured.

The spray frame consists of the pipes or tubes 64, 65, 64', 65', 64", 65", 64" and 65"' suitably joined together so as to form two hollow rectangular members parallel with each other and fastened at their tops and bottoms to the carriages 58 and 63 and communicating through the tubular connector 66 (see Fig. 2). The connector 66 isin communication with the pipe 5 through a connection 67 so that when the valves 4, 20 and 8 are open and valves 7 and 21 are closed, saponied water will pass into the connection 66 and into the two rectangular pipe frames. Thetop members 64" and and the side spray members 64, 65, 64" and 65" each contain perforationspointing at various angles toward the u per sides or insides of the plates or other dishes standing in the rack 46 so that these perforations will direct streams of water against the faces of the dishes. The dishes in the rack 46 are inclined from the vertical as shown in Fig. 2. The annular direction of the sprays will permit the water to strike against the top surface or inner face of each dish and the velocity of the sprays falling at their respective angles will cause the water to be splashed from the inner face of each dish against the back ofthe dish immediately in front of it. The

Water will then fall from the dishes on rack axis and are tapped at regular intervalsv horizontally on both sides and smaller tubes owls and other dishes resting in "lov 94 and 95 are inserted into these openings.

The smaller tubes 94 and 95 arey capped on the outer ends and are perforated on both sides of the central axis; 'therefore sprays of water willv be thrown upwards out of spray members 64' and 65' in planes parallel with the bracket supporting wall 53' and sprays of water will. also be thrown upwards out of the smaller tubes 94 ,and 95 in planes at right angles to those thrown by the pipes 64' and 65' so that the entire inner surfaces of the bowls and other dishesA resting on the tray 51 will be reached by these up-thrown sprays.

Since the opening 33 extends practically the entire length of the washer casing and in vie-w of the fact that the pi e 5 is connected to the pipe 6' by a lexible connection, it will be apparent that the rectangular sprayer frame consisting of the members 64,- 65, 64', 65', 64", 65, 64" land 65"' and the carriages which support them can be moved longitudinally with respect to the 'casing so that they will pass over the entire batch of dishes within the casing to apply water thereto. In order to illustrate the principle involved only tw'o spray members-have been shown, but a greater number of such rectangular members may be used in the spray frame. Furthermore, the details of the spray frame may be altered in any way that will accomplish the results aimed at most etiiciently. The main idea involved consists oi a spray frame composed of a number of vertical and rectangular members spaced at equal distances parallel with each other, and containing perforations that will throw water downward and from both sides inward against the plates and other shallow dishes standing in rack 46 and that will simultaneously spray water upward into the down-turned "bowls, glasses, cups and other deep dishes that are, resting on rack 5.1'. The number of spray frames used in the device is only dependent upon the rate of flow of the water supply. Therefore, for hotels and other institutions requiring the washing of large numbers of dishes, this washing` machine may be easily adapted thereto by elongating the outer casing and dish racks and increasing the number of spray frames to meet the requirements. Where more than one spray frame is used, each frame will be connected with the water vsupply through an independent flexible tube similar to 25 and, all spray frames will be iecipro *the wall 3l.

cated by means ont one common source of power.

A. novel means is provided for eidecting @n the shaft 78 is a inion 74e, which meshes with a gear 75 to rive the shattp76 which carries it at a relatively low speed. The shaft 76 extends through the partition 53' and carries a sprocket 77, which drives a sprocket chain 78, passing laround an idle sprocket 79 and an intermediate sprocket 80 on shaft 82, carried by the partition 53.

i The shaft 82 carries an additional sprocket 8d and a shaft 83 carries a s rocket 85 around which passes a sprocket c ain 86.

The two members 6d" and 65 ot the sprayer frame are connected by a cross bar 8 on which is pivotally mounted a link 88, adapted to engage the carriage arm or connector 89, fastened to one of the links of the chain 78. (See lliig. 5.) f The link 88 may be fastened to the barrel portion 90 of the carriage arm or connector 89 by a winged screw 9i (see Fig. 5), and since the link is pivot/ed to the bar 87 it can have relative play, the connector 89 acting as a crank to pull the sprayer carriages along their guideways from lett to right when the bottom ot the chain 78'is movmg from left to right and when the link carrying the connector 89 is moving from right to left or is at the top of the chain, the sprayer will be pushed from right to lett; t at is, the sprayer will be reciprocated back and forth around the dishes and since there are two or more hollow rectangular frames surrounding the dishes with sprayer openvings preferably directing the Huid in 1ntersecting Astreams from the rectangular frames, it will be apparent that the spraying device will ass back and forth, traversing a ath equidistant with the length of the rame so that all ot the dishes will be subjected toa direct application of the water.

llt a few dishes are to be washed, they will be placed in the center ot the racks or in the middle of the trame and then the link 88 will be uncoupled from the barrelV 90 and attached to a similar arm or connector 92 on one ot thelinks of the chain\86. The action during the rotation of.

recate@ a saving of the wash water because it'the sprayer passed through vthe entire length ot the machine, there would be an unnecessary waste of wash water.

From the description so tar, it will be evi-s dent that the dishes can be readily placed in the receptacle, the door 52 'closed and the necessary valves opened to spray saponied Water over the dishes, the waste water tinally discharging from the washer into the silver cleaner. When the dishes have been thoroughly washed fresh hot rinsing water may be applied to the dishes by means of a simple system of control valves, after which the water sup ly to the washer may be shut oil by the va ve 8 and the dishes left to dry. ld/'hilo the dishes are being washed, the silverware may be withdrawn from the box 85,

wiped across the cleaner ll so as to remove any adherin substances and then dried by hand. The ox 35 may then -be folded back against the washer and the waste water falling from the spout may be permitted lto tlow over cooking utensils so as to soak them preparatory to washing them. Either be- :fore or after the dishes are washed, the cook lng utenslls, such as pans, pots, etc., may be cleansed by means of the fountain brush 28 which may be supplied with either saponitied or fresh water as required.

llt is apparent that the device is simple in construction, inexpensive to manufacture and adapted to adequately cleanse all kinds ot silverware, lassware, dishes and cooking utensils, and tiiat this may be accomplished with a minimum of labor on the part of the operator. llt is furthermore unnecessary for the operator to put his hands into the wash water during any ot the washing processes.

llt is further apparent that the device can be builtto wash a small number ot dishes, such as is required in a residenctaor that it can be built to Wash a large number of dishes, the capacity being dependent solely upon the volume of Water available for supplying the machine. A

llt is further apparent that the device may be easil adjusted so as to economically operate without waste of water, soap or power when the number ot dishes to be washed is less than the total capacity ot the .machine.

llt is further apparent that the device may be built to fit on a drain board on the left side of a sink, or that it can be built to tit on the opposite side of the sink, or that when desired, it can be mounted upo'n a suitable base and be located at any convenient place.

llt is also apparent that the spray trame may be reciprocated, as shown, by means ot' power derivedfrom an electric motor, or that the same reciprocatory motion may be accomplished by means of a hand crank, or that a reciprocating water motor may be usedl t@ rettore this treaties:

imanes What I claim and desire to secure by Letters-Patent is:

1. In a Washing machine, a casing, means within the casing for supporting dishes, tracks at the side of the supporting means, spaced pipes surrounding the supporting means, aving traveling support on sai tracks and having openings adapted for delivering jets at d1`erent angles towards the top, sides and bottom of the supporting means to contact with dishes supported thereon, means forreciprocating the pipes, and means for supplying water to the pipes, the lower portions of the pipes having lateral, perforated branches for delivering jets upwardly at different angles to supplement the jets from the pipes proper.

`driven belt within the casing, and means for connecting the water distributor to the d belt.

3. A washing machine comprising a casing, means for supporting dishes within the casing, a water distributor within the casing and mounted for reciprocatorv movement, a plurality of drive belts of different lengths, the means for interchangeably connecting the Water distributor to the several belts.

In testimony whereof I aiix my signature.

ERIC W. BACHARACH. 

